Mc ‧ En ‧ roe, John /ˈmækənrəʊ, ˈmækɪnrəʊ/ BrE AmE
(1959–) a US tennis player, who won the men’s SINGLES competition (=when one man plays against another man) at Wimbledon three times and the US Open at Forest Hills four times between 1979 and 1984. He is known for his angry behaviour, and for saying ‘You cannot be serious’ when he disagreed with an ↑ umpire 's decision. After he stopped playing tennis, he started working as a ↑ commentator for TV.